NYC-WTC_000233682

NYC 9/11 Public Portal Document

RESPONSE GUIDELINES 2 Threat Evaluation 2.1 Threat Evaluation Process

Review existing information

Is threat -HO' lossibie?

VES

1 Perform site characterisation Consider operational response

I Review additional information --------

Cfose investigation, return \ Is threat credible? ■NO­ to normal operation, and ! document the threat. / YES

Perform sample anaiysis ZZZ3____ Consider public haaith response

............ X..... _ Review additional information

io results confirm Is threat still NO- NO- contamination? cfediijle?

YES YES ........................................... .............. 1............. Revise operaticnai and puhtic Revise sampiing and health response as necessary analysis plans and continue threat evaluation ........ I........ Develop remediation and recovery plan

5 Interim Final - August 2004

CITY_21MC100_004992344

NYC-WTC_000233687